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high compression low boost?

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Old 04-12-2005, 11:48 PM
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Default high compression low boost?

i have a GSR motor with p30 pistons. Cspeed says its 11.5:1 compression ratio. when i do a compression test its like 220. is it safe to put a turbo on it?? everything else is stock. if i boost it will be low. just wondering if its safe??
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Old 04-12-2005, 11:52 PM
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Default Re: high compression low boost?

been there done that.........i was turboing 11-11.5:1, now i am turboing 10.8:1

u can turbo it, but u have to get really good management and injectors........basically u have less room for error......
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Old 04-13-2005, 12:01 AM
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Default Re: high compression low boost?

the turbo is a t3 .42 .48
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Old 04-13-2005, 12:03 AM
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Default Re: high compression low boost?

i have DSM injectors and honda s200 with Boost option.
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Old 04-13-2005, 12:56 AM
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Default Re: high compression low boost?

so most of you think its okay is DSM injectors with hondata s200B good enough??
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Old 04-13-2005, 01:24 AM
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Default Re: high compression low boost?

pull those pistons and sell them.
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Old 04-13-2005, 01:29 AM
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Default Re: high compression low boost?

i wanna keep the pistons in there. maybe just a new headgasket i only want 220hp out of this maybe boost 5 pounds.
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Old 04-13-2005, 08:07 AM
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Default Re: high compression low boost?

Originally Posted by highperboi
i wanna keep the pistons in there. maybe just a new headgasket i only want 220hp out of this maybe boost 5 pounds.
If you only want 220whp, then stay all motor. If your going turbo, then swap in some 9:1 pistons and go for 300whp.
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Old 04-13-2005, 09:30 AM
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Default Re: high compression low boost?

Originally Posted by beerbongskickass
Originally Posted by highperboi
i wanna keep the pistons in there. maybe just a new headgasket i only want 220hp out of this maybe boost 5 pounds.
If you only want 220whp, then stay all motor. If your going turbo, then swap in some 9:1 pistons and go for 300whp.

exactly!! if you really do want to boost your project and not be so worried about the high compression, just throw in a thicker head gasket to lower you compression a little and you'll be ready to go. like chingro said, you can turbo it with th compression you have but you have to have a very good managment and there is less room for tuning errors
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Old 04-13-2005, 09:42 AM
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Default Re: high compression low boost?

http://www.evans-tuning.com/viewtopic.php?t=19
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